82 lines
2.3 KiB
Nix
82 lines
2.3 KiB
Nix
{ config, pkgs, ... }:
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with pkgs.lib;
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let
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cfg = config.services.dd-agent;
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datadog_conf = pkgs.runCommand "datadog.conf" {} ''
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sed -e 's|^api_key:|api_key: ${cfg.api_key}|' ${optionalString (cfg.hostname != null)
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"-e 's|^#hostname: mymachine.mydomain|hostname: ${cfg.hostname}|'"
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} ${pkgs.dd-agent}/etc/dd-agent/datadog.conf.example > $out
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'';
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in {
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options.services.dd-agent = {
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enable = mkOption {
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description = "Whether to enable the dd-agent montioring service";
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default = false;
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type = types.bool;
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};
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# !!! This gets stored in the store (world-readable), wish we had https://github.com/NixOS/nix/issues/8
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api_key = mkOption {
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description = "The Datadog API key to associate the agent with your account";
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example = "ae0aa6a8f08efa988ba0a17578f009ab";
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type = types.uniq types.string;
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};
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hostname = mkOption {
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description = "The hostname to show in the Datadog dashboard (optional)";
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default = null;
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example = "mymachine.mydomain";
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type = types.uniq (types.nullOr types.string);
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};
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};
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config = mkIf cfg.enable {
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environment.etc = [ { source = datadog_conf; target = "dd-agent/datadog.conf"; } ];
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environment.systemPackages = [ pkgs."dd-agent" pkgs.sysstat pkgs.procps ];
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users.extraUsers."dd-agent" = {
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description = "Datadog Agent User";
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group = "dd-agent";
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home = "/var/log/datadog/";
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createHome = true;
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};
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users.extraGroups."dd-agent" = { };
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systemd.services.dd-agent = {
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description = "Datadog agent monitor";
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path = [ pkgs."dd-agent" pkgs.python pkgs.sysstat pkgs.procps];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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ExecStart = "${pkgs.dd-agent}/bin/dd-agent foreground";
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User = "dd-agent";
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Group = "dd-agent";
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};
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restartTriggers = [ pkgs.dd-agent datadog_conf ];
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};
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systemd.services.dogstatsd = {
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description = "Datadog statsd";
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path = [ pkgs."dd-agent" pkgs.python ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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ExecStart = "${pkgs.dd-agent}/bin/dogstatsd start";
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User = "dd-agent";
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Group = "dd-agent";
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Type = "forking";
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PIDFile = "/tmp/dogstatsd.pid";
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};
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restartTriggers = [ pkgs.dd-agent datadog_conf ];
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};
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};
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}
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